The F.B.I. had previously turned over a small number of documents on antiwar groups, showing the agency's interest in investigating possible anarchist or violent links in connection with antiwar protests and demonstrations in advance of the 2004 political conventions. And earlier this month, the A.C.L.U.'s Colorado chapter released similar documents involving, among other things, people protesting logging practices at a lumber industry gathering in 2002.

The latest batch of documents, parts of which the A.C.L.U. plans to release publicly on Tuesday, totals more than 2,300 pages and centers on references in internal files to a handful of groups, including PETA, the environmental group Greenpeace and the Catholic Workers group, which promotes antipoverty efforts and social causes.

Many of the investigative documents turned over by the bureau are heavily edited, making it difficult or impossible to determine the full context of the references and why the F.B.I. may have been discussing events like a PETA protest. F.B.I. officials say many of the references may be much more benign than they seem to civil rights advocates, adding that the documents offer an incomplete and sometimes misleading snapshot of the bureau's activities.

Because, you know, we wouldn't want to look benign or anything. Misleading, sure! But not benign!

About Me

What Kind Of Liberal Am I?

My Liberal Identity

You are a Working Class Warrior, also known as a blue-collar Democrat. You believe that the little guy is getting screwed by conservative greed-mongers and corporate criminals, and you’re not going to take it anymore.